Univariate and multivariate sex dimorphism in the diverse age group of the South Indian dentition using the polyvinyl siloxane elastomeric impression material

Abstract Background In the South Indian population, an odontometric analysis was performed with the older age group (18 to 60 years) and using the dimensionally stable polyvinyl siloxane elastomeric impression material (PVS) that can create minute detail replicas of tooth structure. Both measurement...

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Autores principales: Roshan Kumar Chaudhary, Nagabhushana Doggalli, Nuwadatta Subedi
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Publicado: SpringerOpen 2021
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spelling oai:doaj.org-article:1e1e4c5f3aa44511aac52233c24d793a2021-11-21T12:07:55ZUnivariate and multivariate sex dimorphism in the diverse age group of the South Indian dentition using the polyvinyl siloxane elastomeric impression material10.1186/s41935-021-00248-02090-5939https://doaj.org/article/1e1e4c5f3aa44511aac52233c24d793a2021-11-01T00:00:00Zhttps://doi.org/10.1186/s41935-021-00248-0https://doaj.org/toc/2090-5939Abstract Background In the South Indian population, an odontometric analysis was performed with the older age group (18 to 60 years) and using the dimensionally stable polyvinyl siloxane elastomeric impression material (PVS) that can create minute detail replicas of tooth structure. Both measurements of buccolingual and mesiodistal dimensions of all permanent teeth (except third molars) were taken with a digital vernier calliper on 400 dental models as a reference sample and 80 dental models as a test sample, with the data from the reference samples subjected to an independent samples t test and stepwise logistic regression analysis. Results Independent samples t test divulged that canines were the most sexually dimorphic teeth followed by buccolingual dimensions of central and lateral incisors. All tooth variables were found greater in males, i.e. 56/56 (100%), whereas stepwise logistic regression analysis formula disclosed that the prediction accuracy in the age group of 18 to 39 years was 91%, 85% and 73% using the teeth from both the jaws, maxillary teeth and mandibular teeth respectively; similarly, in the age group of 40 to 60 years, it was 85%, 84% and 83% using teeth from both jaws, maxillary teeth and mandibular teeth respectively; finally, in the overall age group of 18 to 60 years, it was 83% and 75% using teeth from both jaws, maxillary teeth and mandibular teeth respectively. The mean percentage of sex dimorphism was found high in South Indian dentition compared with other populations. Conclusions Nonetheless, the accuracy of the results obtained can be considered moderate to high, and sexing can be achieved using regression formulas for each age group, which reflects demographic diversity.Roshan Kumar ChaudharyNagabhushana DoggalliNuwadatta SubediSpringerOpenarticleSex determinationOdontometricsLogistic regression analysisSexual dimorphismMesiodistalBuccolingualLaw in general. Comparative and uniform law. JurisprudenceK1-7720Medicine (General)R5-920ENEgyptian Journal of Forensic Sciences, Vol 11, Iss 1, Pp 1-12 (2021)
institution DOAJ
collection DOAJ
language EN
topic Sex determination
Odontometrics
Logistic regression analysis
Sexual dimorphism
Mesiodistal
Buccolingual
Law in general. Comparative and uniform law. Jurisprudence
K1-7720
Medicine (General)
R5-920
spellingShingle Sex determination
Odontometrics
Logistic regression analysis
Sexual dimorphism
Mesiodistal
Buccolingual
Law in general. Comparative and uniform law. Jurisprudence
K1-7720
Medicine (General)
R5-920
Roshan Kumar Chaudhary
Nagabhushana Doggalli
Nuwadatta Subedi
Univariate and multivariate sex dimorphism in the diverse age group of the South Indian dentition using the polyvinyl siloxane elastomeric impression material
description Abstract Background In the South Indian population, an odontometric analysis was performed with the older age group (18 to 60 years) and using the dimensionally stable polyvinyl siloxane elastomeric impression material (PVS) that can create minute detail replicas of tooth structure. Both measurements of buccolingual and mesiodistal dimensions of all permanent teeth (except third molars) were taken with a digital vernier calliper on 400 dental models as a reference sample and 80 dental models as a test sample, with the data from the reference samples subjected to an independent samples t test and stepwise logistic regression analysis. Results Independent samples t test divulged that canines were the most sexually dimorphic teeth followed by buccolingual dimensions of central and lateral incisors. All tooth variables were found greater in males, i.e. 56/56 (100%), whereas stepwise logistic regression analysis formula disclosed that the prediction accuracy in the age group of 18 to 39 years was 91%, 85% and 73% using the teeth from both the jaws, maxillary teeth and mandibular teeth respectively; similarly, in the age group of 40 to 60 years, it was 85%, 84% and 83% using teeth from both jaws, maxillary teeth and mandibular teeth respectively; finally, in the overall age group of 18 to 60 years, it was 83% and 75% using teeth from both jaws, maxillary teeth and mandibular teeth respectively. The mean percentage of sex dimorphism was found high in South Indian dentition compared with other populations. Conclusions Nonetheless, the accuracy of the results obtained can be considered moderate to high, and sexing can be achieved using regression formulas for each age group, which reflects demographic diversity.
format article
author Roshan Kumar Chaudhary
Nagabhushana Doggalli
Nuwadatta Subedi
author_facet Roshan Kumar Chaudhary
Nagabhushana Doggalli
Nuwadatta Subedi
author_sort Roshan Kumar Chaudhary
title Univariate and multivariate sex dimorphism in the diverse age group of the South Indian dentition using the polyvinyl siloxane elastomeric impression material
title_short Univariate and multivariate sex dimorphism in the diverse age group of the South Indian dentition using the polyvinyl siloxane elastomeric impression material
title_full Univariate and multivariate sex dimorphism in the diverse age group of the South Indian dentition using the polyvinyl siloxane elastomeric impression material
title_fullStr Univariate and multivariate sex dimorphism in the diverse age group of the South Indian dentition using the polyvinyl siloxane elastomeric impression material
title_full_unstemmed Univariate and multivariate sex dimorphism in the diverse age group of the South Indian dentition using the polyvinyl siloxane elastomeric impression material
title_sort univariate and multivariate sex dimorphism in the diverse age group of the south indian dentition using the polyvinyl siloxane elastomeric impression material
publisher SpringerOpen
publishDate 2021
url https://doaj.org/article/1e1e4c5f3aa44511aac52233c24d793a
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